MCQ Subject: Coding Decoding & Series

A series is given as: 1, 3, 6, 10, ?. What comes next in the series?

In the series ‘A=1, B=2, C=4, D=8, E=__?’, what is the value of E based on the given pattern?

If ‘CODE’ is coded as ‘SGHI’, how would ‘TECH’ be coded?

A coding method replaces each letter with a number equal to its alphabet position plus 2 (A=3, B=4, …, Z=29). Which code corresponds to ‘CAT’?

In a coded message, ‘APPLE’ is written as ‘DSOOH’. What would be the code for ‘BANANA’ using the same pattern?

Identify the next number in the sequence: 3, 7, 13, 21, 31, ?

In the series 3, 9, 2, -3, 7, -1, 11, -5, ?, ?, the pattern alternates between two sequences: one increasing by 6 (starting from 3) and the other decreasing by 5 (starting from 9). What are the next two numbers in the series?

The code for ‘APPLE’ is given as 1 16 16 12 5. Which of the following codes represents ‘BANANA’ if the coding pattern follows the alphabetical position of letters with a consistent adjustment?

Identify the next number in the series: 3, 6, 12, 24, 48, ? The pattern follows a specific mathematical operation.

In the series 3, 6, 12, 24, 48, what is the next number?